HDMI 2.1 validation is to occur through Q2'18. By that point, tvOS 12 is right around the corner in Q3. We'll likely see firmware support added at that time for eARC (and Dolby Atmos), QMS, and VRR (maybe).

I hope this goes hand in hand with "Enhancements to Match Content Support". Hopefully auto switching between 720p, 1080p and 4K, as well as frame rate and SDR/HDR/DV.

Unlike Apple TV content which streams the proper resolution for the selected resolution, a Phone or Mac might be playing back a different resolution than the ATV is set to display. Having the ATV auto match the proper resolution would solve all kinds of issues for me.

Whatever issue(s) they're having implementing AirPlay 2, it delayed the HomePod, I assume they had to redo the firmware for AirPlay (1) support, since it seemed like the HomePod was designed hand in hand with AirPlay 2.

Define promise. They told the Verge ('https://www.theverge.com/2017/9/21/16341876/new-apple-tv-4k-review-2017') "the lack of Atmos isn’t a hardware limitation, and that support is on the roadmap." People may have read Apple's words and included that in a buying decision.

Who told the verge? Give me a name?

Essentially the verge asked ‘someone’ at Apple. I could pop into an Apple Genius Bar and get a whole range of information some of which is accurate,some of which isn’t.

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